PLease help ill give brainliest if correct

220.5cm3

Step-by-step explanation:

volume- crossectional area times  lenghth

                 1/2 mult  7  mult 7 mult 9= 220.5cm3

i think asking google will you get the answer to that question

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.